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L. OGHSE & G. GOERK.

BAG FRAME MACHINE. No. 594,142. Patented Nev. 23, 1897.

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(No Model.) 2 SheetsSheet 2.

L. OCHSE 8v G. GOERK.

BAG FRAME MACHINE. No. 594,142 Patented Nov. 23, 1897.

WITNESSES LINVENTORQSQ Amaf A BY AW ATTORNEYS UNTTED STATES PATENT ETcE.

LOUIS OOHSE AND GUSTAV GOERK, OF- NEWARK, NEW JERSEY, ASSIGNORS TO WILLIAM ROEMER, OF SAME PLACE.

BAG-FRAME MACHINEP SPECIFICATION forming part of Letters Patent No. 594,142, dated November 23, 1897.

Application filed December 15, 1896- Serial No. 615,743. (No model.) 7

To all whom it may concern.-

Be it known that we, LOUIS OOHSE and GUS- TAV GOERK, citizens of the United States, residing at Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Bag-Frame Machines; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

The object of this invention is to facilitate the operation of manufacturing sheet-metal bag-frames of a peculiar construction and thus reduce the cost of the same and to secure other advantages and results, some of which may be referred to hereinafter in connection with the description of the working parts.

The invention consists in the improved bagframe-forming machines and in the arrangements and combinations of parts, all substantially as will be hereinafter set forth, and finally embraced in the clauses of the claim.

Referring to the accompanying drawings, in which like letters of reference indicate corresponding parts in each of the several views, Figure 1 is a front elevation of a portion of the improved machine. Figs. 2 and 3 are enlarged sectional details taken through lines x and y, Fig. 11. Figs. 4, 5, 6, and 7 are detail views illustrating portions of the bag-frame in the production of which the machine is em-' ployed. Fig. 8 is a plan of the lower die or forming member; and Figs. 9 and 10 are sections of the same on lines .2 and 2, respectively. Fig. 11 is afront elevation of the upper die or forming member. Fig. 12 is a side View of the same. Fig. 13 is afront view of the lower member. Fig. 14 is aside view of the same. Fig. 15 is a plan of the upper die member, and Fig. 16 is a side view in detail of a certain intermediate section.

In forming bag or satchel frames we find it desirable to so shape or bend straight strips or pieces f of sheet metal, such as are illustrated in Figs. 4 and 5, having longitudinal flanges f f" at right angles to one another,

oneof which flanges has a longitudinal return-bendf at its edges, so that the said straight strip will be turned or bent to form a rounded corner, as shown in Fig. 6, at the upper end corners of the satchel-frame. To enable the already bent sheet metal to be thus shaped at the ends of the bag-frame, while maintaining the right-angular relation of the flanges in cross-section and a proper continuity, smoothness, or finish to the return-bend, as shown in Fig. 7, is the more specific object of the invention.

It may be understood that the right-angular flanges and the return-bend are first given their shape and relation in the straight strip or piece in other dies or formers than those herein shown.

In said drawings, a, Fig. 1, indicates the frame or bed-plate of the machine, which may be of any construction common in the manufacture of hand or power presses. Upon the platen a of the said bed-plate or frame is arranged a sectional lower die 1), comprising a front bed-section b, a rear bed-section 7), short intermediate bed-sections 19, arranged on opposite sides of a vertically-sliding forming-section c, said forming-section being seated on a spring d, Fig. 9, and pivotal holdingarms 6, pivotally arranged at opposite sides of said vertically-sliding section 0; The sections thus mentioned are arranged and con structed to cooperate with the upper die F in giving shape to the frame as follows:

The front and rear sections b b are arranged edgewise and held apart by the intermediate sections b 19". They are joined or held in operative relation by pins which pass through from one to the other, said pins also serving to hold the intermediate sections 6 in position. The rear section b is provided with a dovetailed slideway, Fig. 8, in which the central vertically-movable forming-section 0, correspondingly dovetailed, works, as hereinafter described. The said sliding section 0 projects forward from said slideway of the rear plate and engages the front plate. At its forward upper edge said sliding section 0 is provided with a low flange c, concaved at its upper edge to correspond with the curve to be given to the bag-frame. Said flange is of a transverse width or thickness to enter and nicely fit into the return-bend f of the bag-frame strip f to hold the members of said strip in proper relation as it is being bent. Beneath said sliding bearing,dependingtherefrom, is a pin 0, Fig. 9, on which the spring cl is arranged for holding the sliding section up to a normal position.

At opposite sides of the sliding section 0 is pivoted holding-arms e c, which are held normally in horizontal position, as shown in Figs. 1 and 13, the upper flanged edges 6 lying in line with the flanged edge e of the sliding section, so that the return-bend f of the strip f will lie on three sides of the flanges of the three parts 6 c e, as will be understood. The pivotal sections or arms 2 e are beveled at their ends (2" contiguous to the sliding section 0 to engage stop surfaces or bearings g ofthe intermediate sections b.

The upper edges of the intermediate sections 12", lying between the front and rear sections and beneath the holding-arms or pivotal sections 6, are flanged, as at g, at the upper inward corners to correspond with the flanges of the sliding and pivotal sections 0 a when the latter are in their extreme abnormal positions. They are also provided with stop-surfaces 9, onto which the said pivotal arms gravitate when assuming their normal horizontal positions.

The pivots h h are so related to the stops gf as that they allow an. upward movement to the outer ends of the arms from the normal horizontal position and cooperate in holding said arms at their normal position when they return from inclined positions.

The front or forward bed-section Z) is made centrally concave to receive the flange f of the frame and give the desired curve thereto.

The upper die F comprises a body portion 2', adapted to be removably fastened in the press in any ordinary manner, so as to be raised and lowered from and to the cooperating member. At the central lower portion of the said body portion t the same is provided with a pivot-bearing 2" and at the sides with oppositely-inclined stop-bearings 't', the inclined surfaces of which are approximately at right angles one to the other. The under side of the downwardly-projecting bearing t" is convexed, as outlined in Fig. 11, in correspondence with the concavity of the section b to form the curve in the flangef. It is provided with an offset, as at 2, Fig. 2, to hold the flange ffrom wrinkling as it is bent edgewise, and is grooved, as at 2, to cooperate with the flanges c in holding the return-bendf in shape as the strip is bent and curved. Upon said bearing 2" are arranged oppositely-extending pivotal armsjj, which also have forming-surfaces supplementing the shaping-surfaces of the lower extremity of the bearing'i and cooperating with the holding and shaping surfaces of the lower die. These surfaces are shown in Fig. 3. Said arms jj are held normally horizontal, so as to engage the'straight rod and fit its upper surfaces preliminary to bending the strip by a stop projection k, arranged adjacent to the pivot upon which said arms j turn, on the body portion t', which projection is engaged by the cooperating stop projection Z of the arms j, limitin g their downward pivotal movement.

In operating the device the straight strip of sheet metal shaped as described, and shown in Figs. 4 and 5, is placed on the lower die member, the return -bend lying along and around the top and sides of the flanges of the arms and held in place thereon by the correspondingly-shaped parts of the upper die. Downward movement of the upper die causes the strip to be bent into the concavity of the lower die, the arms cc and jj assuming opposite inclines, as indicated in outline in Fig. 1, one arm 6 maintaining its parallel relation with its adjacent arm j as they gradually approach. As the upper die is lowered the sliding section 0 is forced down with it against the power of the spring 61. The convexity of the lower end of the portion t' at 71 and the concavity of the flange 0' also maintain their relation with the return-bend f, so that the strip is given the desired curve without the flanges and return-bend being wrinkled or rendered unduly irregular.

Having thus described the invention, what we claim as new is 1. In a bag-frame machine, the bendingdies comprising upper and lower members each of which is provided with arms which are in pairs and normally extend oppositely in alinement and are free upon their connections to turn and assume an angular relation, one arm with the other in each pair, the arms in one pair being movable with the opposite arms in the other pair and maintaining parallel relations therewith while assuming the said angular relations, said parts being combined, substantially as set forth.

2. In a bag-frame machine, the bendingdies comprising upper and lower members each of which is provided with pivotal holding-arms, the upper member having a con- .vexity to engage a concavity in the lower die and the said lower die member having said concavity and having a vertically-slidin g section 0, all parts being combined and operating, substantially as set forth.

3. In a bag-frame machine, the combination with the member 1), comprising plates 1), b, and intermediate plates b, 12, of pivotal arms 6, e, and sliding section 0, of a member F, having arms j, j, all said parts being arranged and operating, substantially as set forth.

In testimony that we claim the foregoing we have hereunto set our hands this 5th day of December, 189(.

LOUIS OOIISE. GUSTAV GOERK.

lVitnesses:

CHARLES H. PELL, O. B. PITNEY.

IIO 

